Square Design Interiors is an award-winning interior architecture and interior design practice, based in Thessaloniki, Greece, creating refined commercial, retail, hospitality and residential environments for clients across Europe.
The studio was founded by interior architect Sandra Korka. A graduate of Anatolia College, the American high school in Thessaloniki, Sandra studied architecture at the University of Greenwich in London and is certified by SBID, the Society of British and International Interior Design. For a decade alongside her practice, she also taught interior design on UK university programmes.
We take a holistic approach to every project, tailoring our design work to the client's needs, the way they work and what their brand stands for. The result is sophisticated interiors, carefully detailed and designed around the people who use them. A strongly creative perspective is matched by disciplined project co-ordination, so the original idea carries through to the finished space.
We offer design-only services, or a complete service combining design with project management and building works, delivering each project finished and ready for use. A full e-design service, with a range of design packages, is also available.
Our trusted international network of manufacturers, suppliers, craftspeople and technology specialists allows close quality control at every stage, particularly on bespoke elements and the seamless integration of current technology into each scheme.
We work closely with our clients and form strong ties; many return to us with new projects.
We work closely with our clients and form strong ties; many return to us with new projects.
The studio has been recognised with the SBID Interior Design Regional Award 2025, the BigSEE Architecture Award 2025 and the Gold Greek Interiors Award 2024.
Our work has been featured in Homes & Gardens, British Vogue, London Life Magazine, Interiorzine, Retail Design Blog and Glow Magazine.
With the main studio in Thessaloniki and further studios in Athens and London, Square Design Interiors delivers projects throughout Europe.
Shadow the Beagle
Shadow is a rescue beagle and the heart of our studio.
Her days are divided between naps in the studio, site visits and trips to our suppliers and collaborators, always keeping a keen eye out for the best treats and a good hug.
She knows the spaces we create so well that she occasionally steps in as our resident model when we photograph completed projects.